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Use of Cystatin C to Assess Kidney Function



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What About Cystatin C?

Slide 14

August 2011

Although creatinine is very useful marker of GFR, given the problems discussed above people have looked for alternatives. One example is cystatin C, a low-molecular-weight protein that is also freely filtered in the kidney. Compared to creatinine, production of cystatin C is much less influenced by a person’s age, gender, and size. Therefore, blood levels of cystatin C better reflect GFR than serum creatinine, and over recent years much effort has been spent evaluating cystatin C as a GFR marker.

What About Cystatin C?

 


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